Photocationic Solution Polymerization of Tetrahydrofuran in the Presence of Diphenyliodonium Hexafluorophosphate

디페닐요도늄 헥사플루오로포스헤이트 존재하의 테트라히드로퓨란의 광양이온용액중합

  • 마석일 (인하대학교 공과대학 섬유공학과) ;
  • 조형진 (인하대학교 공과대학 섬유공학과, 인하대학교 이과대학 화학과) ;
  • 이강흡
  • Published : 1995.03.01

Abstract

Photocationic polymerization of tetrahydrofuran(THF) in methylene chloride has been carried out in the presence of diphenyliodonium hexafluorophosphate. It has been f]unto that the living nature is lost to some extent by the addition of polar solvent. This can be explained with an assumption that the equilibrium between ion pair and free ion, responsible for the cationic propagation, is shifted to free ion by the polar solvent and the reactivity of free cationic propagating species results in the increase in chain transfer. The stability of cationic species has been explained in terms of thermodynamics.

Keywords

References

  1. Photopolymerization of Surface Coatings C.G.Roffey
  2. Photopolymerization of Surface Coatings C.G.Roffey
  3. J. Polym. Sci. v.3 Okamura;K.Ueno
  4. J. Polym. Sci. Chem. v.20 S.Mah;Y.Yamamoto;K.Hayashi
  5. J. Polym. Sci. Chem. v.20 S.Mah;Y.Yamamoto;K.Hayashi
  6. J. Phys. Chem. v.87 S.Mah;Y.Yamamoto;K.Hayashi
  7. Macromolecules v.16 S.Mah;Y.Yamamoto;K.Hayashi
  8. J. Polym. Sci. Chem. v.16 J.V.Crivello;J.W.Lam
  9. J. Polym. Sci. Chem. v.17 J.V.Crivello;J.W.Lam
  10. J. Polym. Sci. Chem. v.17 J.V.Crivello;J.W.Lam
  11. J. Polym. Sci. Chem. v.18 J.V.Crivello;J.W.Lam
  12. J. Polym. Sci. Chem. v.18 J.V.Crivello;J.W.Lam
  13. Macromolecules v.10 J.V.Crivello;J.W.Lam
  14. J. Korean Fiber Soc. v.29 S.Mah;W.Park
  15. J. Korean Fiber Soc. v.30 S.Mah;D.You
  16. J. Polym. Sci., Polym. Symp. v.56 S.Penczek;K.Matyjaszewski
  17. Macromolecules v.10 J.McKenna;T.K.Wu;G.Pruckmayr
  18. J. Polym. Sci.: A-1 v.4 M.P.Dreyfuss;P.Dreyfuss